Respuesta :
Given the Ricwy corporation maintenance cost is modeled by the formula y=4800+0.4x, the maintenance cost when x=9000 hours will be:
y=4800+0.4(9000)
y=4800+3600
y=$8400
The total maintenance cost for the month of August will be $8400
y=4800+0.4(9000)
y=4800+3600
y=$8400
The total maintenance cost for the month of August will be $8400
Maintenance cost for Ricwy corporation is given by following equation
y = $4800 + $0.40x, where x is machine hours
As mentioned in the problem statement, 9000 machine hours are planned in august. Therefore, maintenance cost for this month can be calculated as,
Cost (y) = $4800 + $0.40 X 9000
=> y = $4800 + $3600
=> y = $8400
So, the cost for august month is $8400